Security Light with Diffusing Light Panel

ABSTRACT

A security light having a first and a second light panel is set forth. The light panels includes a plurality of light scattering structures which are V-shaped grooves extending from the top surface to the bottom surface along the height of each of the light panels. The light scattering structures may modify in density as the distance from the light source increases in order to improve the light output performance of the panes.

BACKGROUND

Outdoor security lighting are commonplace for outdoor environments.These designs however are typically visible during the daylight hoursand are obtrusive in their appearance. These security lights furtherhave limited control of the actual light output of individual lightheads and illumination systems.

SUMMARY

In some embodiments, a security light may comprise a mounting baseelectronically coupled to a sensor head. In various embodiments, thesecurity light may comprise a first and second light panel coupled tothe mounting base. In addition, in some embodiments, each one of thefirst and second light panel include a proximal end and a distal end. Insome embodiments, each of the first and second light panel includes atop and bottom surface and a front and back surface extending betweenthe proximal end and the distal end. In various embodiments, thesecurity light may include at least one heat sink adjacent the proximalend of each of the first and second light panels. In some embodiments,the proximal end of each of the first light panel and the second lightpanel each are adjacent a plurality of LEDs. Moreover, in someembodiments, the back surface of each of the first and second lightpanel include a plurality of V-shaped recesses increasing in densitywith increasing distance from the proximal end towards the distal end,wherein the plurality of V-shaped recesses extend between the topsurface and the bottom surface.

In addition, in some embodiments, the plurality of V-shaped recessesextend through each of the top surface and the bottom surface. Invarious embodiments, each of the plurality of V-shaped recesses includetwo angled surfaces, wherein the two angled surfaces are 95 degrees fromeach other. In some embodiments, each of the first and second lightpanels include about an 80 percent front illumination and about a 20percent wall wash illumination. Moreover, in some embodiments, theproximal end of each of the first and second light panel are adjacenteach other and extend away from each other in opposing directionstowards the distal end of each respective first and second light panel.In some embodiments, the proximal end of the first light panel may beconnected to a first support arm extending from the mounting base andthe proximal end of the second light panel may be connected to a secondsupport arm extending from the mounting base. In various embodiments,the first light panel and the second light panel move independently ofeach other. In some embodiments, at least one heat sink includes a firstheat sink adjacent the proximal end of the first light panel and asecond heat sink adjacent the proximal end of the second light panel. Inaddition, in various embodiments, the distal end of each of the firstand second light panels have a region without the plurality of V-shapedrecesses. In some embodiments, each one of the first and second lightpanels includes a flange adjacent the proximal end. In variousembodiments, each of the plurality of V-shaped recesses includes abottom, wherein the bottom extends between the top surface and thebottom surface. Moreover, in some embodiments, the bottom of each one ofthe plurality of V-shaped recesses may be a depth of about 0.4 inchesfrom the back surface. In various embodiments, each one of the first andsecond light panels are translucent.

In some embodiments, a security light may comprise a mounting baseelectronically coupled to a sensor head. In various embodiments, thesecurity light may include one or more light panels coupled to themounting base. In some embodiments, each one of the one or more lightpanels may include a proximal end and a distal end. In addition, invarious embodiments, each of the one or more light panels may include afirst surface with adjacent opposing surfaces extending between theproximal end and the distal end. In various embodiments, the securitylight may include at least one heat sink adjacent the proximal end ofeach of the one or more light panels. In some embodiments, the proximalend of each of the one or more light panels each are adjacent aplurality of LEDs. In various embodiments, the first surface of each ofthe one or more light panels may include a plurality of elongatedrecesses increasing in density with increasing distance from theproximal end towards the distal end. In some embodiments, the pluralityof elongated recesses may extend between the opposing surfaces acrossthe first surface. Moreover, in various embodiments, the elongatedrecesses may be V-shaped and extend through the opposing surfaces.

As used herein for purposes of the present disclosure, the term “LED”should be understood to include any electroluminescent diode or othertype of carrier injection/junction-based system that is capable ofgenerating radiation in response to an electric signal and/or acting asa photodiode. Thus, the term LED includes, but is not limited to,various semiconductor-based structures that emit light in response tocurrent, light emitting polymers, organic light emitting diodes (OLEDs),electroluminescent strips, and the like. In particular, the term LEDrefers to light emitting diodes of all types (including semi-conductorand organic light emitting diodes) that may be configured to generateradiation in one or more of the infrared spectrum, ultraviolet spectrum,and various portions of the visible spectrum (generally includingradiation wavelengths from approximately 400 nanometers to approximately700 nanometers). Some examples of LEDs include, but are not limited to,various types of infrared LEDs, ultraviolet LEDs, red LEDs, blue LEDs,green LEDs, yellow LEDs, amber LEDs, orange LEDs, and white LEDs(discussed further below). It also should be appreciated that LEDs maybe configured and/or controlled to generate radiation having variousbandwidths (e.g., full widths at half maximum, or FWHM) for a givenspectrum (e.g., narrow bandwidth, broad bandwidth), and a variety ofdominant wavelengths within a given general color categorization.

For example, one implementation of an LED configured to generateessentially white light (e.g., a white LED) may include a number of dieswhich respectively emit different spectra of electroluminescence that,in combination, mix to form essentially white light. In anotherimplementation, a white light LED may be associated with a phosphormaterial that converts electroluminescence having a first spectrum to adifferent second spectrum. In one example of this implementation,electroluminescence having a relatively short wavelength and narrowbandwidth spectrum “pumps” the phosphor material, which in turn radiateslonger wavelength radiation having a somewhat broader spectrum.

It should also be understood that the term LED does not limit thephysical and/or electrical package type of an LED. For example, asdiscussed above, an LED may refer to a single light emitting devicehaving multiple dies that are configured to respectively emit differentspectra of radiation (e.g., that may or may not be individuallycontrollable). Also, an LED may be associated with a phosphor that isconsidered as an integral part of the LED (e.g., some types of whiteLEDs). In general, the term LED may refer to packaged LEDs, non-packagedLEDs, surface mount LEDs, chip-on-board LEDs, T-package mount LEDs,radial package LEDs, power package LEDs, LEDs including some type ofencasement and/or optical element (e.g., a diffusing lens), etc.

The term “light source” or “illumination source” should be understood torefer to any one or more of a variety of radiation sources, including,but not limited to, LED-based sources (including one or more LEDs asdefined above), incandescent sources (e.g., filament lamps, halogenlamps), fluorescent sources, phosphorescent sources, high-intensitydischarge sources (e.g., sodium vapor, mercury vapor, and metal halidelamps), lasers, other types of electroluminescent sources,pyro-luminescent sources (e.g., flames), candle-luminescent sources(e.g., gas mantles, carbon arc radiation sources), photo-luminescentsources (e.g., gaseous discharge sources), cathode luminescent sourcesusing electronic satiation, galvano-luminescent sources,crystallo-luminescent sources, kine-luminescent sources,thermo-luminescent sources, triboluminescent sources, sonoluminescentsources, radioluminescent sources, and luminescent polymers.

A given light source may be configured to generate electromagneticradiation within the visible spectrum, outside the visible spectrum, ora combination of both. Hence, the terms “light” and “radiation” are usedinterchangeably herein. Additionally, a light source may include as anintegral component one or more filters (e.g., color filters), lenses, orother optical components. Also, it should be understood that lightsources may be configured for a variety of applications, including, butnot limited to, indication, display, and/or illumination. An“illumination source” is a light source that is particularly configuredto generate radiation having a sufficient intensity to effectivelyilluminate an interior or exterior space. In this context, “sufficientintensity” refers to sufficient radiant power in the visible spectrumgenerated in the space or environment (the unit “lumens” often isemployed to represent the total light output from a light source in alldirections, in terms of radiant power or “luminous flux”) to provideambient illumination (i.e., light that may be perceived indirectly andthat may be, for example, reflected off of one or more of a variety ofintervening surfaces before being perceived in whole or in part).

The term “spectrum” should be understood to refer to any one or morefrequencies (or wavelengths) of radiation produced by one or more lightsources. Accordingly, the term “spectrum” refers to frequencies (orwavelengths) not only in the visible range, but also frequencies (orwavelengths) in the infrared, ultraviolet, and other areas of theoverall electromagnetic spectrum. Also, a given spectrum may have arelatively narrow bandwidth (e.g., a FWHM having essentially fewfrequency or wavelength components) or a relatively wide bandwidth(several frequency or wavelength components having various relativestrengths). It should also be appreciated that a given spectrum may bethe result of a mixing of two or more other spectra (e.g., mixingradiation respectively emitted from multiple light sources).

For purposes of this disclosure, the term “color” is usedinterchangeably with the term “spectrum.” However, the term “color”generally is used to refer primarily to a property of radiation that isperceivable by an observer (although this usage is not intended to limitthe scope of this term). Accordingly, the terms “different colors”implicitly refer to multiple spectra having different wavelengthcomponents and/or bandwidths. It also should be appreciated that theterm “color” may be used in connection with both white and non-whitelight.

The term “lighting fixture” is used herein to refer to an implementationor arrangement of one or more lighting units in a particular formfactor, assembly, or package. A given unit may have any one of a varietyof mounting arrangements for the light source(s), enclosure/housingarrangements and shapes, and/or electrical and mechanical connectionconfigurations. Additionally, a given unit optionally may be associatedwith (e.g., include, be coupled to and/or packaged together with)various other components (e.g., control circuitry) relating to theoperation of the light source(s). An “LED-based fixture” refers to alighting unit that includes one or more LED-based light sources asdiscussed above, alone or in combination with other non LED-based lightsources. A “multi-channel” lighting unit refers to an LED-based and/ornon LED-based lighting unit that includes at least two light sourcesconfigured to respectively generate different spectrums of radiation,wherein each different source spectrum may be referred to as a “channel”of the multi-channel lighting unit.

The term “controller” is used herein generally to describe variousapparatus relating to the operation of one or more light sources. Acontroller can be implemented in numerous ways (e.g., such as withdedicated hardware) to perform various functions discussed herein. A“processor” is one example of a controller which employs one or moremicroprocessors that may be programmed using software (e.g., microcode)to perform various functions discussed herein. A controller may beimplemented with or without employing a processor, and also may beimplemented as a combination of dedicated hardware to perform somefunctions and a processor (e.g., one or more programmed microprocessorsand associated circuitry) to perform other functions. Examples ofcontroller components that may be employed in various embodiments of thepresent disclosure include, but are not limited to, conventionalmicroprocessors, application specific integrated circuits (ASICs),field-programmable gate arrays (FPGAs), and discrete logic.

In various implementations, a processor or controller may be associatedwith one or more storage media (generically referred to herein as“memory,” e.g., volatile and non-volatile computer memory such as RAM,PROM, EPROM, and EEPROM, floppy disks, compact disks, optical disks,magnetic tape, etc.). In some implementations, the storage media may beencoded with one or more programs that, when executed on one or moreprocessors and/or controllers, perform at least some of the functionsdiscussed herein. Various storage media may be fixed within a processoror controller or may be transportable, such that the one or moreprograms stored thereon can be loaded into a processor or controller soas to implement various aspects of the present invention discussedherein. The terms “program” or “computer program” are used herein in ageneric sense to refer to any type of computer code (e.g., software ormicrocode) that can be employed to program one or more processors orcontrollers.

It should be appreciated that all combinations of the foregoing conceptsand additional concepts discussed in greater detail below (provided suchconcepts are not mutually inconsistent) are contemplated as being partof the inventive subject matter disclosed herein. In particular, allcombinations of claimed subject matter appearing at the end of thisdisclosure are contemplated as being part of the inventive subjectmatter disclosed herein. It should also be appreciated that terminologyexplicitly employed herein that also may appear in any disclosureincorporated by reference should be accorded a meaning most consistentwith the particular concepts disclosed herein.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings, like reference characters generally refer to the sameparts throughout the different views. Also, the drawings are notnecessarily to scale, emphasis instead generally being placed uponillustrating the principles of the invention.

FIG. 1 illustrates a perspective view of an implementation of thesecurity light described herein.

FIG. 2 illustrates a rear perspective of the security light describedherein.

FIG. 3 illustrates a rear view of the security light described herein.

FIG. 4 illustrates a top view of a light panel described herein.

FIG. 4A illustrates an enlarged view of the light panel of FIG. 4.

DETAILED DESCRIPTION

It is to be understood that a security light is not limited in itsapplication to the details of construction and the arrangement ofcomponents set forth in the following description or illustrated in thedrawings. The described embodiments are capable of other embodiments andof being practiced or of being carried out in various ways. Also, it isto be understood that the phraseology and terminology used herein is forthe purpose of description and should not be regarded as limiting. Theuse of “including,” “comprising,” or “having” and variations thereofherein is meant to encompass the items listed thereafter and equivalentsthereof as well as additional items. Unless limited otherwise, the terms“connected,” “coupled,” and “mounted,” and variations thereof herein areused broadly and encompass direct and indirect connections, couplings,and mountings. In addition, the terms “connected” and “coupled” andvariations thereof are not restricted to physical or mechanicalconnections or couplings.

Turning to the Figures, FIG. 1 illustrates an example of a securitylight 10 described herein. Included in this implementation is a firstlight panel 20 and a second light panel 30. In some embodiments, one ormore light panels may be used. Each of the first and second light panels20, 30 may be connected to a mounting base 50 by first and secondcontrol arms 52, 54.

Each of the light panels 20, 30 may be substantially similar and, forsake of brevity, reference will be made to the first light panel 20.Alternatively, in varying embodiments, the first light panel and thesecond light panel may be modified for particularized light outputdepending upon the illumination requirements. In some embodiments, thefirst light panel may provide a first photometric light output which isthe same as the second light panel. In other embodiments, the firstlight panel may provide a photometric light output that differs from thesecond light panel. For example, the first light panel may have aphotometric distribution that provides an emphasis on downlight builtinto the panel as a result of placement of the grooves. Alternatively,the second light panel may provide more outward throw distribution forwide-area lighting. Other variants and embodiments of mixing photometricdistributions adjusted by the specific shapes of the grooves formed inthe panels may be implemented.

As shown in the Figures, the first light panel 20 includes a proximalend 22 and an opposing free or distal end 24. The first light panel 20includes a top surface 25, bottom surface 26, front surface 27, and aback surface 28 extending between the proximal end 22 and the distal end24. Distal end 24 of the first and the second light panel may include areflective surface to allow reflection of any remaining light back intothe internal light guide formed by the respective light panel. Each ofthe light panels is translucent and allows light to internally reflectwithin the panel due to characteristics of the material construction.Typically light panels allow for total internal reflection wherein thelight is allowed to reflect internally within the boundaries of thelight panel and which thereby allows light to exit the light panel/lightguide by virtue of positioned disruption surfaces formed on a surface orinternally of the light guide/light panel. These disruption surfaces, asdepicted in the various embodiments, are v-shaped recesses but can bemade in other forms including light disruption features formedinternally or positioned internally within the material forming thelight panel/light guide. The disruption surfaces and/or materials can bepositioned in various locations within the light panel depending uponthe desired interruption desired for allowing light to exit via anysurface of the light panel. However, in this way, photometric lightoutput can be controlled and maintained by positioning of the featuresthrough various positions apart from those that are shown in theexemplary embodiments of the present embodiments and figures.

The first light panel 20 may include a plurality of light scatteringstructures distributed on the back surface 28 as is depicted in theembodiment and example of FIG. 2. A density of the plurality of thelight scattering structures increases with increasing distance from theproximal end towards the distal end. The plurality of light scatteringstructures may be a plurality of elongated recesses having a variety ofprofiles along their length (e.g. D-shaped, V-shaped, truncated, etc.).In the one embodiment shown, the light scattering structures is aplurality of V-shaped recesses or channels 40. In the one embodiment,the distal end 24 of the first light panel includes a region 21 withoutthe plurality of V-shaped recesses. As shown, the V-shaped recess 40 maybe spaced away from the distal end 24 creating region 21. The V-shapedrecesses 40 extend between the top surface 25 and the bottom surface 26.Each V-shaped recess 40 may extend through the top surface 25 and/or thebottom surface 26. As more clearly shown in FIGS. 4 and 4A, in someembodiments, the V-shaped recess 40 extends through both the top surface25 and the bottom surface 26.

The V-shaped recess 40 may include two angled surfaces 41 extendingtowards a bottom 42. As shown in the embodiment, in FIGS. 4 and 4A, thebottom 42 may be a continuous line or surface extending between the topsurface 25 and bottom surface 26. The bottom 42 may be a depth D ofabout 0.4 inches from the back surface 28 or planar surface. The angledsurfaces 41, as illustrated in FIG. 4A, may be a variety of angles Afrom each other. However, in the one embodiment shown, the angle A maybe about 95 degrees. Stated alternatively, the angled surfaces 41 areabout 47.5 degrees from the vertical or normal to the planar backsurface 28. Each V-shaped recess 40 may be substantially perpendicularto the direction between the proximal end 22 towards the distal end 24or light source 60.

The various recesses formed in the light panels may extend horizontallyor may extend vertically depending upon the position of the light entrysurface which receives illumination output from the light emitters. Insome embodiments, a light entry surface may be positioned along a sidesurface, such as in the present examples but alternative light entrysurfaces may be implemented in alternative embodiments. As presented inthe figures, a plurality of LEDs 60 may illuminate a light entry surfaceadjacent to the LEDs, as shown in FIG. 4. Light emitted by the pluralityof LEDs may enter into the interior of the light guide and reflectinternally through total internal reflection until such reflectiondisrupted thereby causing the light to exit through the front surface 27of the light guide. Internal reflection can be modified and/or adjustedby virtue of the positioning of the grooves 40 and also by positioningof the LEDs along the side of the light guide. Internal reflection canbe further improved through various alternative constructions of thelight guide and /or material thereof. For example, the light guide 20may include a reflective surface along a rear surface thereof to enhanceor increase total internal reflection, thereby only allowing lightoutput along a front surface if the reflector is positioned on the rearsurface. In some examples, the internal reflection can be controlled bythe thickness of the light guide and/or the construction material and orpositioning of the disruption surfaces.

As shown in the embodiment of FIG. 4, the first light panel 20 mayinclude a flange 23. The flange 23 may be adjacent the proximal end 22of the first light panel 20. The flange 23 may extend outwardly from theproximal end 22. In the one embodiment shown, the flange 23 extendsradially outward from each one of the front surface 27, back surface 28,top surface 25, and bottom surface 26. The flange 23 may be containedwithin the casing/heat sink for attachment. Flange 23 may be utilized tofixate the light panel in relative position with respect to theplurality of LEDs 60 in order to properly fixate and place the lightentry surface of the light panel relative to the plurality of LEDs 60.The flange 23 may fit within retention receptacles interior casings 51,53 such that each of the panels are fixated within the housing. Forexample, the front and the back of the casing may separate opening theinterior of the casing construction and/or casings and allowing thepanel to be positioned relative to the LEDs. Connection of the first andsecond halves of the casings fixates the panel into position andattachment of the front and back sections to each other may beaccomplished, in embodiments, using screws or other mechanisms.

Alternative constructions to fixate the panels within the housing andcasings may be utilized including compression or other mechanicaltechniques including adjustable clamps or members, channels embeddedwithin the housing or studs instead of a continuous flange formed on thedistal surface of the light panel. The casings 51, 53 may be a two piececonstruction to compress against the end of the respective light panelthereby retaining the light panel in place by virtue of the flange 23and a mechanically restrictive connection between the light panel,flange and the respective casing. Alternative constructions for thecasings to retain the panel may be utilized such as a channel thatslidingly receives the flanged end of the light panel. For example, thecasing may have a matching flanged shaped channel in which the end ofthe panel slides and which has an abutment surface on a lower or upperend opposite the entry position of sliding the panel. In examples, thecasing may have tightening screws or compression members which clampdown on the positioned panel thereby preventing the panel from beingremoved. In some embodiments, the channel can be formed on the upper orlower surface of the casing allowing the panel to be slid into positionwith accessible screws to clamp the panel into position.

The first light panel 20 may be a translucent plate as shown in theFigures. It should be understood that the one or more light panels maybe a variety of shapes (e.g. round, curved), sizes, quantities, andconstructions. The first light panel 20 with V-shaped recesses 40 may bemanufactured in a variety of methods and ways. One method may beinjection molding the first light panel 20 with the light scatteringstructures (e.g. V-shaped recesses). However, in some embodiments, theV-shaped recesses 40 may be laser etched and/or machined within the oneor more surfaces of the light panels. The light panels 20, 30 may bemade from a variety of materials. In one example, the first light panelmay be made of one or more plastic materials such as but is not limitedto acrylics, polycarbonate, polymethyl, methacrylate, polystyrene,copolymer of methylmethacrylate and styrene, and any suitablecombination thereof. In alternative embodiments, the laser etching orother disturbance features may be formed in the light panel to disruptthe internal reflection of the light. Such disruption features can beformed internally or along an exterior surface of the light panel.

In various implementations, the first light panel 20 may be configuredto illuminate from a light source 60 adjacent the proximal end 22. Withthe density of the plurality of V-shaped recesses 40 increasing withincreasing distance from the light source, the illumination and/oruniformity away from the light source 60 is improved. In the oneembodiment shown, the first light panel 20 may include a 20% wall washaway from the back surface 28 and opposing 80% illumination in theopposing or front direction away from the front surface 27. Increasingthe density of the V-shaped recesses or disruptions further away fromthe light entry surface allows for increased disruption of internalreflection at an increased distance from the light entry surface. As aresult, uniform light output can be obtain by increasing disruptionsurfaces or features further away from the LEDs where the illuminationlevel has diminished. Thus, by increasing the disruption surfaces at theopposite end of the light entry surface, even light output distributionmay be achieved.

Referring to FIG. 4, the one embodiment of the first light panel 20includes one or more light sources 60. The light source 60 may beadjacent the proximal end 22 of the first light panel 20. In theembodiment shown, the light sources 60 are one or more plurality ofLEDs. The plurality of LEDs may be positioned along the proximal end 22between the top surface 25 and the bottom surface 26. Both the first andsecond light panels 20, 30 may include a plurality of LEDs mountedtherein which may be electrically controlled by a control and/or drivercircuit either at the individual LED positions, by a combined LEDlighting driver control or by segmented illumination driver/control forthe individual first and second light panels. In some implementations,the LEDs may be individually controlled or may be controlled by eachpanel for, among some aspects, color and light intensity. For example,in various embodiments, the light intensity may be changed from 0% to100% and/or the color temperature may be changed between 3000K and5000K. Such driver control could be through standard known modulationand or alternatively voltage/current control techniques. Driver controlcircuitry for LED illumination may be incorporated at the individualrespective first and second light panels, at the individual emitter ormay alternatively be provided in a combined LED driver controller whichcould be positioned within the fixture, singular light panel, mountinghousing or junction box.

The plurality of LEDs positioned along the light entry surface of thelight panel may be mounted on an LED PCB which may include associatedlens or other light direction and/or concentration surface to controlthe light entry of the illumination into the light guide. The LED PCBmay be maintained and held in place within the heat sink of the fixtureadjacent to a light guide holding structure to maintain the light guidein direct and light entry arrangement with respect to the LED PCB. Manyknown LED constructions may be implemented to correctly position andfocus the light from the emitters to the light entry surface of thelight guide. The LED PCB may include incorporated therein an LEDcontroller to control the power supplied to the LEDs and also to controlthe characteristics of the light output. The LED driver (not shown) maycontrol all of the LEDs on the fixture 80 or may be provided to in agroup of controllers to control groups or segments of LEDs. The driversmay also be incorporated at the individual emitter. Such LED drivers cancontrol light output by controlling the waveform or electrical powersupplied to the LED emitter. Further, such controller may control thecolor temperature, color and the lumen output of the individual LEDs andalso the entire luminaire.

As shown in FIGS. 1-3, the first and second light panels 20, 30 orfixture 10 may include one or more heat sinks 70. The heat sink 70 maybe positioned adjacent the light source 60 and /or LED PCB on which theLEDs are mounted along a proximal end 22, 32 of the first and secondlight panels 20, 30. The heat sink 70 may include a plurality of finsand is in thermal engagement with the LED PCB to receive heat therefromand allow such heat to dissipate. In the embodiment shown, the fins areprojecting away from the back surface of the first light panel. As shownin the one embodiment, the heat sink 70 is adjacent the proximal end 22of the first light panel 20 and a second or another heat sink 70 isadjacent the proximal end 32 of the second light panel 30. Although, aheat sink is shown with each light panel, it should be understood that asingle heat sink may have two or more light panels attached thereto insome embodiments.

As shown in the figures, the first and second light panels 20, 30 may beorientated in a variety of ways relative to each other. In the oneembodiment, the proximal end and/or heat sinks of each of the first andsecond light panels are adjacent each other. The first and second lightpanels extend away from each other in opposing directions towards theirrespective distal ends. In some embodiments, the light panels may be insubstantially the same plane in one or more configurations. In otherconfigurations, the light panels may not be in substantially the sameplane. In some implementations as shown, the heat sink mounted on arepositionable bracket or mounting structure can swivel the heat sinkwhich holds the light guide and which holds the LED electronics, etc.

In various implementations, the first and second light panels 20, 30 maybe connected to the base mounting 50 via first and second support armsor connecting arms 52, 54. Each respective connecting arm 52, 54 may bereceived in respective casing 51, 53 formed on the respective rearsurface of the first and second light panels 20, 30 and/or heat sinks70. Mounting base 50 may be mounted directly to a junction box or otherelectrical mounting connection as known in the art. Typical wiring andmounting bars may be provided in aspects to allow for direct mounting toa surface of a building. In variations, direct wall mount or ceilingmount may be provided by varying the position of the mounting base 50and control arms 52, 54. It should be understood that the support orconnecting arms 52, 54 may be connected to the light panels and basemounting by a variety of connections allowing a change in positions ofthe light panels (e.g. ball joint connections and/or one or more hinges,etc.). Also, the arms 52, 54 may be connected directly to casings 51, 53which hold the panels in place while the arms allow the panels to beadjusted relative to the position of the base.

As illustrated, the first and second light panels may be independentlymoved relative to each other. The arms 52, 54 may allow each first andsecond light panel to be adjusted to a variety of positons relative toeach other. However, in some embodiments, the first and second lightpanels may be adjusted in unison or together between one or morepositions. The casings 51, 53 may be utilized to support and constrainrespective first and second light panels in relation to the plurality ofLEDs and the LEDs can be mounted within each of the respective moveablecasing 51, 53. Thus, the panels and the light output may be adjustableas a result of the independently movable connection of the arms relativeto the base mounting 50. Thus, translucent light panels are adjustablyconnected to the base mounting 50 and may be moved relative thereto andindependent of each other.

In addition, a sensor head 80 may be electronically and/or electricallyconnected to the mounting base 50. As shown in the Figures, sensor head80 may extend outwards and have fully operational motion sensingelectronics using known techniques. Sensor head 80 may incorporate theuse of multiple or single mounted PIRs, radar, sonic and or laser rangefinding, among various technologies known to electronically determinemovement of people and/or animals. Such technology may include heatsignatures, range finding and or distance measurement algorithms andother techniques which may be electronically implemented in the sensorhead, combined with electronics of the security light 10 or positionedoff-fixture. Sensor head 80 may also be mounted, in embodiments,directly onto the mounting base or may be separable from the base andcommunicate directly to control and/or other electronics of the securitylight 10 so that the light panel may be positioned separately from themounted position of the security light. By electronically connecting thesensor head to the control electronics of the security light presentlydescribed, both wired and non-wired connections can be supported.

In embodiments, the security light 10 may incorporate additional sensingdevices such as optical sensors to determine ambient light levels suchas a photocell, allowing the security light to come on at dusk. Suchoptical sensors may also be combined with other location findingtechniques allowing the security light 10 to determine location and timezone and correlating location with pre-determined or calculated sunsetand sunrise times. Alternatively, the lighting controller may haveassociated electronics and memory to allow programming ofcustomer/installed desired on/off times after dusk, illumination ONtimes after sensing motion, full dusk to dawn illumination, partial orlower light intensity dusk to dawn illumination for the entire period orfor user defined periods, modification of intensity levels, or othercustomer desirable modifications. Further, the controller may further beconfigured to sense a hard ‘reset’ or active ‘ON’ by manual switchingOFF then ON of the power at the switch by the user. In someimplementations, cameras and/or voice control may be used to control thecharacteristics of the light panels/security light. All of such featuresmay be incorporated into controller programming where a microprocessorexecutes instructions stored in an associated memory, or in alternativeor combined configurations, some or all features may be implemented withassociated circuit controls incorporated into the controller.

In some implementations, it may be desirable to allow the User toreprogram the delay times, sensitivity of the PIR and or motion sensors,light intensity levels and color, color temperature, sensitivity and ortriggering of the optical sensors for dusk and dawn determination, aswell as ON times and lower illumination times and or levels. Suchreprograming may be implemented with switches at the security light, ormay be readily implemented with associated reprogramming by a userthrough a mobile programming device, such as a phone or dedicated remotecontrol. Such reprogramming capability may require implementation ofcommunication channels for both transmission and receiving commands froma remote source. Corresponding applications may be implemented formodification of such features on a user mobile device. In someembodiments, a wireless connection may be established according tovarious wireless standards such as WiFi, Bluetooth, or Zigbee to varythe light output of the first and/or second light panels. Other types ofwireless links may be used.

For example, a user may select and/or modify ON time after the motionsensor detects motion while also selecting the illumination intensity,such as dimming the illumination levels slowly during change in state.In alternative embodiments, the user may select and/or modify thespecific colors utilized by the light panels, if supported, and mayinclude user modification of the color temperature. Such modificationsmay be implemented either for each light panel or individually for asingle light panel.

In some embodiments, user specified alternative modifications mayfurther include flashing or blinking lights of each or both light panelsunder predefined conditions. For example, in some implementations, oneor more light panels may be programmed to flash intermittently toindicate an alert or warning condition, such as the detectedinterruption of power. Alternatively, a flashing alert or warningcondition may be implemented by programming or user adjustment ofcontrols by one or more light panels upon detection of motion whileconcurrently increasing illumination intensity of one or more lightpanels.

In implementations, LEDs may be connected to a power supply whichprovides electrical power to each LED. The power supply utilized insecurity lighting may be a standard converter to provide adequate andappropriate electrical supply to the individual LEDs via drivingcircuits, as discussed. The power supply may accept standard 110V ACline voltage and modify it accordingly to provide to the individualLEDs. Such modifications may include AC to DC conversion, PWM drivers,smoothing or chopping circuits and the like as are well-known in the artto provide adequate power to the LEDs.

In some implementations, the LEDs may further include color LEDs toprovide variability in color and/or color temperature. Color may beimplemented by various techniques including known color mixing ofpredefined color LEDs, modifying color output using luminescentmaterials, driving LEDs at varying intensity to meet color outputrequirements, among other known implementations.

Various implementations for drivers of the LEDs may be utilizedincluding microprocessors, the linear AC drivers are constant currentregulators. In other embodiments, the linear AC drivers are ASICs. Otherdrivers may be used. The LEDs may be provided as arrays, individualemitters, any of which may be directly addressable and hence drivable bycontrol and/or micro-processors and included programming stored onavailable and accessible memory. Such may include in implementations,current regulators, voltage regulators, micro-controllers and otherknown circuitry to maintain illumination levels and othercharacteristics of the LEDs.

In some implementations, the security light may include a batteryback-up such that the batteries (e.g. rechargeable), when at apredetermined and specified voltage or condition, provide power to theillumination sources. The battery backup may also be operably connectedto the power supply and associated electronics or controller.

While several inventive embodiments have been described and illustratedherein, those of ordinary skill in the art will readily envision avariety of other means and/or structures for performing the functionand/or obtaining the results and/or one or more of the advantagesdescribed herein, and each of such variations and/or modifications isdeemed to be within the scope of the invent of embodiments describedherein. More generally, those skilled in the art will readily appreciatethat all parameters, dimensions, materials, and configurations describedherein are meant to be exemplary and that the actual parameters,dimensions, materials, and/or configurations will depend upon thespecific application or applications for which the inventive teachingsis/are used. Those skilled in the art will recognize, or be able toascertain using no more than routine experimentation, many equivalentsto the specific inventive embodiments described herein. It is,therefore, to be understood that the foregoing embodiments are presentedby way of example only and that, within the scope of the appended claimsand equivalents thereto, inventive embodiments may be practicedotherwise than as specifically described and claimed. Inventiveembodiments of the present disclosure are directed to each individualfeature, system, article, material, kit, and/or method described herein.In addition, any combination of two or more such features, systems,articles, materials, kits, and/or methods, if such features, systems,articles, materials, kits, and/or methods are not mutually inconsistent,is included within the inventive scope of the present disclosure.

All definitions, as defined and used herein, should be understood tocontrol over dictionary definitions, definitions in documentsincorporated by reference, and/or ordinary meanings of the definedterms. The indefinite articles “a” and “an,” as used herein in thespecification and in the claims, unless clearly indicated to thecontrary, should be understood to mean “at least one.” The phrase“and/or,” as used herein in the specification and in the claims, shouldbe understood to mean “either or both” of the elements so conjoined,i.e., elements that are conjunctively present in some cases anddisjunctively present in other cases.

Multiple elements listed with “and/or” should be construed in the samefashion, i.e., “one or more” of the elements so conjoined. Otherelements may optionally be present other than the elements specificallyidentified by the “and/or” clause, whether related or unrelated to thoseelements specifically identified. Thus, as a non-limiting example, areference to “A and/or B”, when used in conjunction with open-endedlanguage such as “comprising” can refer, in one embodiment, to A only(optionally including elements other than B); in another embodiment, toB only (optionally including elements other than A); in yet anotherembodiment, to both A and B (optionally including other elements); etc.

As used herein in the specification and in the claims, “or” should beunderstood to have the same meaning as “and/or” as defined above. Forexample, when separating items in a list, “or” or “and/or” shall beinterpreted as being inclusive, i.e., the inclusion of at least one, butalso including more than one, of a number or list of elements, and,optionally, additional unlisted items. Only terms clearly indicated tothe contrary, such as “only one of” or “exactly one of,” or, when usedin the claims, “consisting of,” will refer to the inclusion of exactlyone element of a number or list of elements. In general, the term “or”as used herein shall only be interpreted as indicating exclusivealternatives (i.e. “one or the other but not both”) when preceded byterms of exclusivity, such as “either,” “one of,” “only one of,” or“exactly one of” “Consisting essentially of,” when used in the claims,shall have its ordinary meaning as used in the field of patent law.

As used herein in the specification and in the claims, the phrase “atleast one,” in reference to a list of one or more elements, should beunderstood to mean at least one element selected from any one or more ofthe elements in the list of elements, but not necessarily including atleast one of each and every element specifically listed within the listof elements and not excluding any combinations of elements in the listof elements. This definition also allows that elements may optionally bepresent other than the elements specifically identified within the listof elements to which the phrase “at least one” refers, whether relatedor unrelated to those elements specifically identified. Thus, as anon-limiting example, “at least one of A and B” (or, equivalently, “atleast one of A or B,” or, equivalently “at least one of A and/or B”) canrefer, in one embodiment, to at least one, optionally including morethan one, A, with no B present (and optionally including elements otherthan B); in another embodiment, to at least one, optionally includingmore than one, B, with no A present (and optionally including elementsother than A); in yet another embodiment, to at least one, optionallyincluding more than one, A, and at least one, optionally including morethan one, B (and optionally including other elements); etc.

It should also be understood that, unless clearly indicated to thecontrary, in any methods claimed herein that include more than one stepor act, the order of the steps or acts of the method is not necessarilylimited to the order in which the steps or acts of the method arerecited.

In the claims, as well as in the specification above, all transitionalphrases such as “comprising,” “including,” “carrying,” “having,”“containing,” “involving,” “holding,” “composed of,” and the like are tobe understood to be open-ended, i.e., to mean including but not limitedto. Only the transitional phrases “consisting of” and “consistingessentially of” shall be closed or semi-closed transitional phrases,respectively, as set forth in the United States Patent Office Manual ofPatent Examining Procedures.

The foregoing description of methods and embodiments has been presentedfor purposes of illustration. It is not intended to be exhaustive or tolimit the invention to the precise steps and/or forms disclosed, andobviously many modifications and variations are possible in light of theabove teaching. It is intended that the scope of the invention and allequivalents be defined by the claims appended hereto.

1. A security light with dual opposing translucent light panels,comprising: a mounting base adjustably connected to a first and a secondcasing; a first translucent light panel retained within the first casingand extending outward and away from the casing, the first casing havinga plurality of LEDs positioned along a light entry surface of the firstlight panel, the first light panel extending outward and away from thefirst casing and the plurality of LEDs in the first casing, theplurality of LEDs in the first casing emitting light into the lightentry surface and causing total internal reflection of the light throughthe first light panel; the first light panel having a plurality ofV-shaped grooves on a rear surface and extending from a top edge of thefirst light panel to a bottom edge of the first light panel, theplurality of V-shaped grooves having a varying density, the varyingdensity increasing in relation to a distance from the first panel lightentry surface, the plurality of V-shaped grooves in the first lightpanel affecting the light output of the first light panel; wherein thetranslucent first light panel is adjustable relative to the mountingbase; a second translucent light panel retained within the second casingand extending outward and away from the casing, the second casing havinga plurality of LEDs positioned along a light entry surface of the secondlight panel, the second light panel extending outward and away from thesecond casing and the plurality of LEDs in the second casing, theplurality of LEDs in the second casing emitting light into the lightentry surface and causing total internal reflection of the light throughthe second light panel; the second translucent light panel having aplurality of V-shaped grooves on a rear surface and extending from a topedge of the second light panel to a bottom edge of the second lightpanel, the plurality of V-shaped grooves having a varying density, thevarying density increasing in relation to a distance from the secondlight panel light entry surface the plurality of V-shaped grooves in thesecond light panel affecting the light output of the second light panel;wherein the second translucent light panel is adjustable relative to themounting base; at least one PIR adjustably mounted to the mounting base;a lighting controller electronically connected to the PIR and to theplurality of LEDs positioned along the light entry surface of the firstlight panel and the plurality of LEDs positioned along the light entrysurface of the second light panel to control the light output of theplurality of LEDs positioned along the light entry surface of the firstlight panel and the second light panel.
 2. A security light comprising:a mounting base electronically coupled to a sensor head; a first andsecond light panel coupled to the mounting base, each one of the firstand second light panel include a proximal end and a distal end, whereineach of the first and second light panel includes a top and bottomsurface and a front and back surface extending between the proximal endand the distal end; at least one heat sink adjacent the proximal end ofeach of the first and second light panels; the proximal end of each ofthe first light panel and the second light panel form a respective lightentry surface and each are adjacent a plurality of LEDs; and the backsurface of each of the first and second light panel include a pluralityof V-shaped recesses increasing in density with increasing distance fromthe proximal end towards the distal end, wherein the plurality ofV-shaped recesses extend between the top surface and the bottom surfaceof the respective first and second light panel.
 3. The security light ofclaim 2 wherein the plurality of V-shaped recesses extend to each of thetop surface and the bottom surface.
 4. The security light of claim 2wherein each of the plurality of V-shaped recesses include two angledsurfaces, wherein the two angled surfaces are 95 degrees from eachother.
 5. The security light of claim 2 wherein each of the first andsecond light panels include about an 80 percent front illumination andabout a 20 percent wall wash illumination.
 6. The security light ofclaim 2 wherein the proximal end of each of the first and second lightpanel are adjacent each other and extend away from each other inopposing directions towards the distal end of each respective first andsecond light panel.
 7. The security light of claim 2 wherein theproximal end of the first light panel is connected to a first supportarm extending from the mounting base and the proximal end of the secondlight panel is connected to a second support arm extending from themounting base.
 8. The security light of claim 2 wherein the first lightpanel and the second light panel move independently of each other. 9.The security light of claim 2 wherein the at least one heat sinkincludes a first heat sink adjacent the proximal end of the first lightpanel and a second heat sink adjacent the proximal end of the secondlight panel.
 10. The security light of claim 2 wherein the distal end ofeach of the first and second light panels have a region without theplurality of V-shaped recesses.
 11. The security light of claim 2wherein each one of the first and second light panels includes a flangeadjacent the proximal end.
 12. The security light of claim 2 whereineach of the plurality of V-shaped recesses includes a bottom, whereinthe bottom extends between the top surface and the bottom surface. 13.The security light of claim 12 wherein the bottom of each one of theplurality of V-shaped recesses is a depth of about 0.4 inches from theback surface.
 14. The security light of claim 2 wherein each one of thefirst and second light panels are translucent.
 15. A security lightcomprising: a mounting base electronically coupled to a sensor head; oneor more light panels coupled to the mounting base, each one of the oneor more light panels include a proximal end and a distal end, whereineach of the one or more light panels includes a first surface withadjacent opposing surfaces extending between the proximal end and thedistal end; at least one heat sink adjacent the proximal end of each ofthe one or more light panels; the proximal end of each of the one ormore light panels each are adjacent a plurality of LEDs; and the firstsurface of each of the one or more light panels include a plurality ofelongated recesses increasing in density with increasing distance fromthe proximal end towards the distal end, wherein the plurality ofelongated recesses extend between the opposing surfaces across the firstsurface.
 16. The security light of claim 15 wherein the elongatedrecesses are V-shaped.